Self-propelling dredge-boat and jetty.



No. 636,626. Patented Nov. 7, I899.

J. BROWN.

SELF PROPELLING DREDGE BOAT AND JETTY.

(Application filed Mar. 2, 1899.) (No Model.) 2 Sheets-Sheet l,

H r 9 a 7oirgvk 75mm mm. WASHINGTON D c m: 40 ms PETERS c0 Pnoro.

No. 63-a;-e-26. Patented Nov. 7, I899.

' .1. snow".

SELF PROPELLING DREDGE BOAT AND JETTY.

(Application filed Mar. 2, 1899,)

2 Sheets-Sheet 2,

(No Model.)

27 d 8 6: n f Meimim W////////Jiil'////////////A UN TED STATES PATENTOFFIC JOSEPH BROWN, on ST. Louis, MISSOURI.

SELF- PROPELLING DREDGE-BOAT AND JETTY.

SPECIFICATION forming part of Letters Patent No. 636,626, dated November'7, 1899.

Application filed March 2, 1899. serial No. 707,437. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH BROWN, of thecity of St. Louis, State ofMissouri, have in-- vented certain new and useful Improvements inSelf-Propelling Dredge-Boats and Jetties, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming a part hereof.

My invention relates to self propelling dredge-boats and jetties; and itconsists of the novel construction, combination,and arrangement of partshereinafter described and claimed.

Figure 1 is a plan view of my improved dredge-boat and jetty. Fig. 2 isa longitudinal sectional view taken approximately on the line 2 2 ofFig. 1. Fig. 3 is a side eleva tion of the lower end of one of thewheeled arms of my improved boat. Fig. 4 is a front elevation of thelower end of one of said arms and showing the bucket and shovel carriedby said arm. Fig. 5 is a detail sectional view taken approximately onthe line 5 5 of Fig. 4. Fig. 6 is a detail sectional view takenapproximately on the line 6 6 of Fig. 4.

In the construction of my improved dredge boat and jetty I make use of apair of hulls 1, the same being arranged parallel with each other andheld a suitable distance apart in any desired manner, and said hulls andthe space between them are decked over, with the exception of a spacebetween the centers of said hulls, through which the wheel of the boatoperates. Located upon the center of each hull is a suitable housing 2,in which is located a battery of boilers and an engine. Extendingupwardly over the deck between the houses and over the open space in thedeck is the semicircular wheel-ho using 3. The wheel 4 is rotatablyarranged in suitable bearings 5, and said wheel is driven by the engineslocated within the houses 2, said Wheel comprising a plurality of arms6, the same being suitably framed together, and the ends of said armsbeing provided with the usual transverse paddles or buckets 7. Rigidlysecured to the outer ends of each of the wheel-arms 6 is a pair ofsockets 8 and 9, the outer socket 8 being provided with arectangularaperture and the inner socket 9 being provided with acircular aperture.

10 indicates a shovel, the same having the integral square handle 11,which passes through the rectangular aperture in the socket 8, and

the upper end of said handle is rounded and screw threaded, as indicatedby 12, said rounded screw threaded portion passing through the circularaperture in the socket 9, and nuts 13 are arranged upon said screw--threaded portion immediately above and below the socket 9.

. as to swing downwardly, as indicated by dotted lines in Fig. 2.

When my improved boat is in operation, the engines operate thepropeller-wheel,which rotates in the usual manner and propels the boatforwardly, and as said boat passes over the bar which it is desired tomove or through which it is desired to cut the channel the shovels 10will dip up the sand as fast as the boat travels and the action of thewheel, to gether with the jetty formed by the double hull, will carryoff the sand to deep water. If desired, the ends 15 of the tank 14 maybe swung upwardly, and thus a portion of the sand dug up by the shovelswill -be thrown into the tank, and said sand may be carried any distanceto be disposed of as desired.

A bar can be gradually removed or a channel gradually deepened bypassing the boat over the bar or channel several times and each timelowering the shovels a slight distance.

Should it be desired to cut a channel or dredge to a depth greater thanthe depth to which the shovels can be adjusted when the boat istraveling under ordinary conditions, the hulls may be loaded with alarge quantity of sand, thus causing'said hulls to have a deeper draftin the water, and consequently causing the shovels to operate to agreater depth.

The pilot-house may be positioned at any suitable point on theboat, andsaid boat may be, if desired, provided with all the implements andapparatus required for removing snags and other obstructions from thewater or on the bank.

A boat of my improved construction has a very light draft, may bepropelled into any position, as required, to form a jetty, and will diga channel through a bar as fast as the boat travels over said bar.

I claim 1. In a combined dredge-boat and jetty, a pair of hulls arrangedparallel with each other and held a suitable distance apart, apropeller-wheel operating through the space between said hulls, meanscarried upon said hulls for operating the propeller-Wheel, and shovelscarried by the arms of the propellerwheel, substantially as specified.

2. In a combined dredge-boat and jetty, a pair of hulls arrangedparallel with each other and held a suitable distance apart, apropeller-Wheel operating through the space between said hulls, meanscarried upon said hulls for operating the propeller-wheel, andadjustable shovels carried by the propellerwheel arms, said shovelsbeing arranged in alinement upon each set of Wheel-arms and projectingbelow the buckets of said wheel, substantially as specified.

In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH BROWVN.

IVitnesses:

M. P. SMITH, A. J. MCOAULEY.

